Plone 5.2, the Future-Proofing Release

After 3.5 years of development, the Plone community has released Plone 5.2 that includes Python 3 compatibility, a REST API in core, and the latest Zope 4.

An update to secure the future

Plone 5.2 is the latest version of the most fully-featured, open source web content management system. Plone 5.2 is the culmination of over 3.5 years of development that was driven by the looming deadline of January 1, 2020: the impending end of support for Python 2.x. 

Python 3 Compatibility

Plone is written in


, the programming language that has taken the world by storm and is popular for learners, scientists, web developers and machine learning alike. Support for Python 3.6, 3.7, and 3.8 is now included with Plone 5.2, opening up the future for Plone’s continuing 20 year reputation for unrivaled security and stability.

Plone 5.2 ships with

Zope 4

, which itself comes with Python 3 compatibility, Web Server Gateway Interface (WSGI) support, and a new look.

Work on Plone 5.2 began to take shape in January 2016, with a Plone Improvement Proposal (PLIP) to

update its dependencies

to use early Zope4 versions and culminated in the completion of the proposal to

port to Python 3

in February 2019.


Once available as a separate add-on, a REST API is now also included in Plone 5.2, making it even easier to use Plone with modern JavaScript front ends such as Volto (based on React) and to integrate Plone with other applications.

User-Facing and Developer-Focused Changes

But Plone 5.2 isn’t just a backend upgrade: it includes user-facing features such as new dropdown menus, configurable redirects (customizable URL shortening and content linking).

Developers will also find a more pluggable and customizable login mechanism and a modernized virtualenv-based buildout.

Community-driven development

For almost 20 years now, the Plone software has continued to innovate and evolve with the times, and its world spanning community maintains a dynamic schedule of collaborative sprints and an annual conference bringing together its integrators and users, which include corporations, universities, all levels of governments and well-known government agencies.

Feature-rich and ready-to use

Plone is unsurpassed its out of the box experience for collaboratively creating, maintaining, and managing large amounts of content. Some of its feature highlights include:

  • customizable workflow for controlling how content gets reviewed and published

  • built in content history and version control

  • content rules that automatically take actions, such as notify users or move content based on customizable conditions

  • sophisticated, fine-grained security through permissions, roles, users, groups, and folder- and object-level sharing authorization

  • accessibility compliance, meeting WCAG 2.1 AAA

  • integration with enterprise authentication and authorization via LDAP/ActiveDirectory

  • deployments that scale, whether Docker, on-premise, or in the cloud

Future Proofing

Plone 5.2 is a must-have as of January 1, 2020, for individuals and organizations with complex content serving needs, a rigorous publishing workflow, a multi-person content creation team, or all of the above.

Learn More and Try Plone Now

To learn more about Plone, visit

To try a live Plone 5.2 demo site, visit

To download Plone 5.2, get it at


New dropdown menus

screenshot showing mouse hovering over the navigation bar

Configurable Redirects

Refreshed Zope4 Look

About Plone 

Released under the GNU Public License (GPL), Plone was created in 2001 as an extension of the groundbreaking Zope web application framework to support the easy creation and management of rich websites and intranets. Plone is among the top 2% of all open source projects worldwide. 

About the Plone Foundation

As Plone’s adoption and contributor base grew tremendously the Plone Foundation was established in 2004 and tasked with protecting and promoting Plone. It is a US 501(c)3 non-profit modeled after similar entities such as the Apache Software Foundation. The Plone Foundation provides support for development and marketing. It is the legal owner of the Plone code base, trademarks, and domain names. Its goal is to ensure Plone remains the premier open source content management system and to broaden its acceptance and visibility.

For the full, detailed release notes see

For Plone 5.2 documentation, see

For the Plone 5.2 upgrade guide, see

Plone 5.2 is available for download at